Table 3. Mean WNV titer in Cx. quinquefasciatus bodies and salivary expectorates of specimens either infected or uninfected intrathoracically with CxFV Izabal.
| Culex quinquefasciatus strain | N | CxFV infection status | WNV blood meal titer (log10 pfu/mL) | Mean WNV body titer (log10 pfu/mosquito ±SE) | Mean WNV saliva titer (log10 pfu/expectorate±SE) |
| Sebring | 53 | − | 8.9 | 7.1±6.3 | 4.1±3.8 |
| Sebring | 28 | + | 8.9 | 7.1±6.3 | 4.6±4.4 |
| Sebring | 22 | − | 7.8 | 7.1±6.6 | 4.6±4.2 |
| Sebring | 14 | + | 7.8 | 6.5±6.3 | 4.3±3.9 |
| Sebring | 18 | − | 7.4 | 7.0±6.3 | 4.4±4.0 |
| Sebring | 7 | + | 7.4 | 6.8±6.5 | 4.7±4.5 |
| Sebring | 23 | inactivated CxFV | 7.4 | 7.0±6.5 | 3.9±3.4 |
| Sebring | 13 | − | 5.6 | 6.8±6.3 | 4.4±4.4 |
| Sebring | 10 | + | 5.6 | 6.4±6.3 | 3.8±3.8 |
| Sebring | 10 | inactivated CxFV | 5.6 | - | - |
| Honduras F5/6 | 7 | − | 8.9 | 7.1±6.6 | 3.6±3.6 |
| Honduras F5/6 | 8 | + | 8.9 | 6.9±6.2 | 2.8±2.5 |
| Honduras F12 | 6 | − | 7.5 | 6.7±6.1 | 3.7±3.5 |
| Honduras F12 | 2 | + | 7.5 | 6.7±0.0* | 2.7±0.01 |
| Honduras F12 | 9 | − | 5.4 | 6.4±6.4 | 2.9±0.01 |
| Honduras F12 | 6 | + | 5.4 | - | - |
| Honduras F12 | 4 | inactivated CxFV | 5.4 | 6.2±6.2 | - |
Bodies and salivas were harvested 14 days following an infectious WNV blood meal. Means were calculated from those bodies or salivas that tested WNV (+). Neither body titers or saliva titers were significantly different between CxFV (+) and CxFV (−) groups (Student's t-test, p>0.05).
1
only one sample so SE could not be calculated.